3.4 TTY debugger commands

This section describes commands specific to the debugger. In addition to these commands the top-level loop interpreter can be used as normal. Upon entry to the debugger the implicit current stack frame is set to the top of the execution stack. The commands allow you to move around the stack, to examine the current frame, and to leave the debugger. The commands are all keywords, and as such case-insensitive, but are shown here in lower case for clarity.